Originally built by Kermit R Troyer in 1940, the Troyer Sportplane N18471 has a welded steel tube fuselage and tail assembly. Its wings use spruce spars and ribs built from ¼-inch square spruce, ply gusseted. Steel tubing also forms the flying struts for the wing, but here a little balsa wood does creep in. It is used for fairing.
Originally power was a Heath B-4 engine but plans provided for a converted VW engine.
Gross Wt. 456 lb
Empty Wt. 306 lb
Fuel capacity 5 USG
Wingspan 23’9”
Length 15’9”
Top speed 95 mph
Cruise 85 mph
Stall 34 mph
Climb rate 600 fpm
Takeoff run 195 ft
Landing roll 150 ft
Range 200 miles
All Aero 